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Cell Division Gone Wrong

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Presentation on theme: "Cell Division Gone Wrong"— Presentation transcript:

1 Cell Division Gone Wrong

2 Mutations A permanent change in the sequence of DNA of a gene
Thesunwashotbuttheoldmandidnotgethishat. The sun was hot but the old man did not get his hat. T hes unw ash otb utt heo ldm and idn otg eth ish at.

3 Progeria

4 Hypertrichosis

5 Proteus syndrome

6 Cancer  A broad group of diseases that result in uncontrolled cell division.

7 Cancer Why does it keep dividing?
The cells checkpoints might fail to identify problems or kill off the cell. As a result...

8 Cancer Tumour – a rapidly growing mass of cells

9 Cancer Benign tumour – the cells stay together and have no serious effect on surrounding tissues. Malignant tumour – the cells interfere with the function of neighbouring cells and tissues Malignant tumour Benign tumor

10 Cancer Metastasis – occurs when cancer cells break away from the original tumour and move to a different part of the body.

11 Causes of Cancer 1. Mutations – random changes that occur in the DNA while it is being duplicated.

12 Causes of Cancer 2. Carcinogens – are environmental factors that cause mutations. Tobacco Plastics Radiation X-rays Sunlight

13 Smoking and Cancer What else does smoking affect?? Lungs Lips Tongue
Fingers Trachea Throat

14 Causes of Cancer 3. Some cancers can be hereditary depending on whether or not you obtain that portion of DNA from your parents. Ex. Breast cancer, colon cancer

15 Causes of Cancer 4. Infections & Viruses
Virus enters cell and ‘highjacks’ it to reproduce Some viruses insert their own DNA inside the host cell, causing it to become cancerous

16 Cancer Screening This involves checking for cancer even if there are no symptoms. This is important to catch cancer at an early stage. ABCD (asymmetry, border, colour, diameter)

17 Cancer Fighting ‘Super Foods’


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